Finding the Fourth Proportional to 1,910,615.09, 2,636,669.68 and 1,039,454.70
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Solution
The fourth proportional to 1,910,615.09, 2,636,669.68 and 1,039,454.70 is: 1,434,458.83
Step by Step Solution
- Step 1: Write the proportion equation
1,910,615.09 : 2,636,669.68 = 1,039,454.70 : x - Step 2: Convert to fraction form
1,910,615.09/2,636,669.68 = 1,039,454.70/x - Step 3: Cross multiply
1,910,615.09x = 2,636,669.68 × 1,039,454.70 - Step 4: Simplify right side
1,910,615.09x = 2,740,698,691,223.50 - Step 5: Solve for x
x = 2,740,698,691,223.50/1,910,615.09 - Step 6: Final answer
x = 1,434,458.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.